Electromagnetic detection of surface open cracks in ferrite and austenitedissimilar steel welded joints
-
摘要: 中国特种设备检测研究院,北京100029 China Special Equipment Inspection and Research Institute,Beijing 100029,China为了研究电磁检测技术检测铁素体与奥氏体异种钢焊接接头表面开口裂纹的能力,制作了Q235R与S30408异种钢横向刻槽对比试样和纵向刻槽对比试样,开展了涡流阵列检测和交流电磁场检测试验。结果表明:涡流阵列检测技术能够检测异种钢焊接接头的横向裂纹和远离铁素体与奥氏体熔合线处的纵向裂纹,但无法检出熔合线处的纵向裂纹;交流电磁场检测技术能够检测熔合线处的纵向裂纹,但无法检测出远离铁素体材料的纵向刻槽;涡流阵列检测技术与交流电磁场检测技术的组合,可以解决铁素体与奥氏体焊接接头的表面开口裂纹的检测问题。
-
关键词:
- 铁素体与奥氏体异种钢焊接接头 /
- 铁素体与奥氏体熔合线 /
- 表面开口裂纹 /
- 电磁检测 /
- 涡流阵列技术
Abstract: To study the detection of the surface-breaking cracks of the ferrite and austenite dissimilar steel welded joint by means of the electromagnetic testing techniques, the transverse and longitudinal notch reference blocks based on Q235R and S30408 dissimilar steel were manufactured, and the eddy current array and the alternating current field measurement techniques were selected to test the blocks. The results show that the eddy current array technique can effectively detect the transverse cracks and the longitudinal cracks at the ferrite and austenite dissimilar steel welded joints, but is unable to detect the longitudinal cracks at the fusion line; whereas the alternating current field measurement is capable of detecting the longitudinal crack at the ferrite and austenite fusion line, but is unable to detect the longitudinal notches at far away from the ferrite area. Therefore, the combination of the eddy current array and the alternating current field measurement techniques may be used to solve the problem on the surface open crack detection of the ferrite and austenite dissimilar steel welded joint. -
-
[1] 黄本生, 杨江, 卢东华, 等.Q345/316L异种钢焊接接头显微组织结构与力学性能[J].材料热处理学报, 2016, 37(5):45-51. [2] 杨首恩, 刘盛波.异种钢焊接接头的裂纹分析[C]//2011年全国失效分析学术会议论文集.西安:[出版者不详], 2011:281-284. [3] JOSEPH A, RAI S K, JAYAKUMAR T, et al.Evaluation of residual stresses in dissimilar weld joints[J].International Journal of Pressure Vessels and Piping, 2005, 82(9):700-705.
[4] LI G F, CONGLETON J.Stress corrosion cracking of a low alloy steel to stainless steel transition weld in PWR primary waters at 292℃[J].Corrosion Science, 2000, 42(6):1005-1021.
[5] 陈志强, 张洪波, 陈柳.异种钢Q235B/304L焊接过渡区疑似缺陷的无损检测[J].无损检测, 2020, 42(12):20-23, 58. [6] 姚小静, 韩伟, 韩明, 等.压力容器制造过程中异种钢焊接工艺及无损检测方法研究[J].石油工业技术监督, 2019, 35(5):38-40. [7] NAGESWARAN C, BIRD C R.Evaluation of the phased array transmit-receive longitudinal and time-of-flight diffraction techniques for inspection of a dissimilar weld[J].Insight, 2008, 50(12):678-684.
[8] 董世运, 徐滨士, 甘小明, 等.异种钢焊接焊缝缺陷涡流无损检测方法试验研究[C]//第十一次全国焊接会议论文集.上海:[出版者不详], 2005:52-54. [9] 李运涛, 宋成, 胡斌, 等.奥氏体不锈钢均匀表面的涡流阵列检测技术应用[J].无损检测, 2018, 40(12):68-73. [10] AMINEH R K, RAVAN M, SADEGHI S H H, et al.Using AC field measurement data at an arbitrary liftoff distance to size long surface-breaking cracks in ferrous metals[J].NDT & E International, 2008, 41(3):169-177.
[11] 李伟, 陈国明.U型ACFM激励探头的仿真分析[J].系统仿真学报, 2007, 19(14):3131-3134, 3162.
计量
- 文章访问数: 1
- HTML全文浏览量: 0
- PDF下载量: 3